I'm not completely sure vs SneakShow. Would you board Boil/Chalice?
Standard list, 3 Depths 1 Karakas 1 Boseiju MD + SB:
4 Sphere
4 K Grip
2 Boil
2 Tracker
1 Primeval Titan
1 Bog
1 Chalice

I'm at:
-4 Punishing Fire, -1 Manabond, -1 Life from the Loam, -1 Tabernacle, -1 Glacial Chasm, -1 Maze of Ith
+4 Sphere, +4 K Grip, +1 Primeval Titan

little fun note: With Sphere and Chalice on 1 out, you can use Boseiju to play Gamble/Crop Rotation through it.